He married Minnie Agnes Parks on March 21, 1888
Samina Minnie Agnes Parks was born about 1863, in Grey, Ontario, the child of Thomas and Mary Ann
The couple had five children
- Mary Isabella Mabel Blakely was born on September 11, 1889, in Grey, Ontario She married Stanley Henry Geddes on December 3, 1919, in Winnipeg, Manitoba
- Margaret Della Blakely was born on August 4, 1892, in Dufferin She married Harry Mellafont Nixon on June 11, 1924, in Winnipeg, Manitoba.
- Thomas G Blakely was born in 1893 in Ontario
- William Allan Blakely was born on March 17, 1900, in Grey, Ontario
- Samina Minnie Elizabeth Cassie Blakely was born on July 8, 1905, in Winnipeg, Manitoba. She married John Ridley on November 5, 1938, in East Kildonan, Manitoba.
In the 1880s, Guy ran a butcher shop in Flesherton, Ontario
He died on June 25, 1938, in Winnipeg, Manitoba, at the age of 76.